pfSense

add 'interface' column to lease_counter table

Cleanup cache and stale packages after install/delete

Add missing ;;

Initial conversion of the file. Most functions completed and tested, but more testing remains

Fix logic to set EVENT_PIPE

Add -h, to show help

Define EVENT_PIPE using a parameter, -p

Print return code when _GUI_CALL is not empty, used by GUI to check rc of a process that runs in bg

Replace direct calls to exit by _exit

Set environment var EVENT_PIPE, used by pkg to write out progress in json format